3BHE024855R0101 UFC921A101 is a kind of linear optocoupler isolation principle, the input signal will be first through the semiconductor device modulation transformation, and then through the light-sensitive or magnetic sensing device isolation conversion, and then demodulation transformation back to isolate the original signal before the original signal or different signals, at the same time, the power supply of the isolated signal power supply isolation processing. Ensure the absolute independence between the transformed signal, power supply and ground.

3BHE024855R0101 UFC921A101 As long as there is interference in the place, the input and output side of the middle plus this product, generally can effectively solve the interference problem. It is now an important part of the industrial automatic control system.3BHE024855R0101 UFC921A101 The PLC system has a large number of input and output points for digital and analogue quantities, and the problem of false connection of the wiring terminals sometimes affects the stable operation and normal display of the system.

3BHE024855R0101 UFC921A101 in the transformation of the commissioning stage and later during the production run there have been individual hardware (DI module SM321, D0 module SM322, AI module SM33 1, A0 module SM332 and CPU413) damage failure, we have analysed the main wiring errors and lightning protection into the string of strong electricity is not in place. We have analysed the problem mainly due to wiring error and lightning protection not in place. Correct the wiring error, and then each analogue signal channel to increase the isolator and the lightning protection device to improve the hardware damage chances are greatly reduced.